Answer:

Step-by-step explanation:

Answer:
4mn,m and, 5. The terms are anything that's not a symbol like + or = in an equation
P.s.
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Answer:
C and B
Step-by-step explanation:
The correct option is option B and C. The necessary condition to prove that the opposite angles of a parallelogram are congruent:
C. Angle Addition Postulate.
B. Opposite sides are congruent
You would use the POINT SLOPE FORMULA and the Slope Formula
which is as follows ...
slope formula : 
point slope formula: 
Answer:
3i √3
Step-by-step explanation:
you can't have the square root of a negative number
so we use "i"